Display module and display device

Abstract

The present disclosure relates to a display module and a display device. The display module comprises: a display panel having a bending area, a first non-bending area and a second non-bending area distributed along a first direction, the bending area being located between the first non-bending area and the second non-bending area; a carbon fiber layer arranged on the back of the display panel; an electrostatic discharge layer comprising a plurality of electrostatic discharge parts arranged along the first direction, the plurality of electrostatic discharge parts being arranged at intervals and connected to a fixed potential signal, at least one electrostatic discharge part being located in the first non-bending area and at least one electrostatic discharge part being located in the second non-bending area; and a conductive layer at least partially located in the bending area and electrically connected to the electrostatic discharge layer, the conductive layer being arranged between the electrostatic discharge layer and the carbon fiber layer, or the conductive layer being arranged between two adjacent electrostatic discharge parts. The bending area which cannot be covered by the electrostatic discharge layer is prevented from being affected by the electric field, and the problem of bright / dark moire in the bending area is avoided.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and in particular to a display module and display device. Background Technology

[0002] With the innovation and development of folding technology, the demand for thinner and lighter folding phones is becoming increasingly strong, leading to the application of more and more new materials in folding modules. Carbon fiber, as a low-density material, is used in folding modules as a support material on the back of the folding module to reduce its weight.

[0003] However, the formation of bright / dark ripples (mura) in the bending area affects the display effect of the folding module. Summary of the Invention

[0004] Therefore, it is necessary to provide a display panel and display device that can improve display uniformity in response to the above-mentioned technical problems.

[0005] In a first aspect, this disclosure provides a display panel, the display module comprising:

[0006] The display panel has a bent area, a first non-bent area and a second non-bent area distributed along a first direction, wherein the bent area is located between the first non-bent area and the second non-bent area;

[0007] A carbon fiber layer is disposed on the back of the display panel;

[0008] The electrostatic discharge layer includes a plurality of electrostatic discharge portions disposed along the first direction. The plurality of electrostatic discharge portions are spaced apart and connected to a fixed potential signal. At least one of the electrostatic discharge portions is located in the first non-bending region, and at least one of the electrostatic discharge portions is located in the second non-bending region.

[0009] A conductive layer, at least partially located in the bending region and electrically connected to the electrostatic discharge layer, is disposed between the electrostatic discharge layer and the carbon fiber layer, or between two adjacent electrostatic discharge portions.

[0010] The aforementioned display module, by setting a conductive layer on the side of the carbon fiber layer away from the display panel, shields the electric field or discharges static electricity through the conductive layer, thereby preventing the bending area, which cannot be covered by the static discharge layer, from being affected by the electric field and avoiding the problem of bright / dark ripples in the bending area.

[0011] In one embodiment, at least a portion of at least one of the static discharge portions is located in the bending region.

[0012] In one embodiment, the conductive layer is disposed between two adjacent electrostatic discharge portions, and the conductive layer is detachably connected to the carbon fiber layer so that the conductive layer can be removed before the display module is assembled.

[0013] Preferably, the conductive layer is a copper foil.

[0014] In this way, on the one hand, the conductive layer and the electrostatic discharge layer are connected to form an electric field shielding layer, and the conductive layer can shield the electric field in the bending area to avoid the bending area being affected by the external electric field; on the other hand, the conductive layer and the carbon fiber layer can be separated and connected, and the conductive layer can be removed before the display module is assembled, which can avoid the poor bending performance of the conductive layer affecting the bending effect of the display module.

[0015] In one embodiment, the conductive layer is disposed between two adjacent electrostatic discharge portions, and the thickness of the conductive layer is the same as or less than the thickness of the electrostatic discharge portion.

[0016] The conductive layer is made of stainless steel alloy or titanium alloy.

[0017] In this way, on the one hand, the conductive layer and the static discharge layer are connected to form a whole electric field shielding layer. The conductive layer can dissipate static electricity and prevent the bending area from being affected by the electric field. On the other hand, the conductive layer has good flexibility and can be bent together with the bending area of ​​the display panel without removing the conductive layer, making the manufacturing of the display module simpler.

[0018] In one embodiment, the thickness of the conductive layer is 20 μm to 30 μm.

[0019] In this way, the conductive layer is thin and has good bending performance, which can prevent the conductive layer from shifting when bending the bending area.

[0020] In one embodiment, the thickness of the conductive layer is 30 μm to 150 μm, and the conductive layer has a plurality of spaced first holes.

[0021] Preferably, the shape of the first hole is rhomboid, circular, elliptical, or rectangular;

[0022] Preferably, the diameter of the first hole is 2mm to 10mm;

[0023] Preferably, the spacing between the first holes is 0.3mm to 1mm.

[0024] In this way, setting the first hole in the conductive layer can increase the bending performance of the conductive layer, prevent the conductive layer from breaking due to bending in the bending area, thereby increasing the thickness of the conductive layer and improving the shielding effect of the conductive layer on the electric field. This prevents the display panel from being affected by the electric field and avoids the problem of bright / dark ripples in the bending area.

[0025] In one embodiment, the conductive layer is disposed between the carbon fiber layer and the electrostatic discharge layer, and the orthographic projection of the conductive layer on the display panel is at least partially located within the bending area.

[0026] Preferably, the orthographic projection of the conductive layer onto the display panel covers the bending area;

[0027] Preferably, the conductive layer is made of stainless steel alloy or titanium alloy;

[0028] Preferably, the thickness of the conductive layer is 20 μm to 30 μm.

[0029] In this way, a conductive layer is added between the carbon fiber layer and the electrostatic discharge layer. The conductive layer covers the bending area to prevent the bending area from being affected by the electrostatic field, thus avoiding the problem of bright / dark ripples in the bending area of ​​the display panel.

[0030] In one embodiment, at least one edge of the orthographic projection of the conductive layer on the display panel extends beyond the edge of the orthographic projection of the carbon fiber layer on the display panel by a predetermined length.

[0031] Preferably, the preset length is 0.05mm-0.15mm;

[0032] Preferably, the preset length is 0.1 mm.

[0033] This facilitates the discharge of static electricity through the edges of the conductive layer, preventing static interference with the display panel.

[0034] In one embodiment, the display module further includes:

[0035] A conductive silver paste layer is disposed at the edge of the conductive layer.

[0036] In this way, the conductive silver paste layer has good conductivity, which allows it to connect with the film layers on the back of the display panel, conduct static electricity off the back of the display panel, improve the anti-static effect of the display module, and prevent the display panel from being affected by static electricity.

[0037] Secondly, this disclosure also provides a display device that includes the display module described in the first aspect.

[0038] The aforementioned display device, by setting a conductive layer on the side of the carbon fiber layer away from the display panel, shields the electric field or discharges static electricity through the conductive layer, thereby preventing the bending area, which cannot be covered by the static discharge layer, from being affected by the electric field and avoiding the problem of bright / dark ripples in the bending area. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments or conventional technologies of this disclosure, the accompanying drawings used in the description of the embodiments or conventional technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of a display module provided in an embodiment of the present disclosure;

[0041] Figure 2 for Figure 1 The top view of the display module shown;

[0042] Figure 3 This is a schematic diagram of the structure of a display module provided in another embodiment of the present disclosure;

[0043] Figure 4 This is a schematic diagram of a structure provided for yet another embodiment of the present disclosure;

[0044] Figure 5 for Figure 4 The image shown is a top view of the bending area of ​​the display module.

[0045] Figure 6 This is a schematic diagram of the structure of a display module provided in yet another embodiment of the present disclosure;

[0046] Figure 7 This is a schematic diagram of the structure of a display module provided in yet another embodiment of the present disclosure;

[0047] Figure 8 This is a schematic diagram of the structure of a display module provided in yet another embodiment of the present disclosure.

[0048] Explanation of reference numerals in the attached figures:

[0049] 10. Display module; 11. Display panel; 111. First non-bending area; 112. Second non-bending area; 113. Bending area; 12. Carbon fiber layer; 13. Static discharge layer; 131. Static discharge part; 14. Conductive layer; 141. First hole; 15. Support layer; 16. Second protective layer; 17. Polarizer; 18. Optical adhesive layer; 19. Cover plate; 20. First protective layer; 21. Conductive silver paste layer. Detailed Implementation

[0050] To facilitate understanding of this disclosure, a more complete description will now be given with reference to the accompanying drawings, in which preferred embodiments of the present disclosure are shown. However, this disclosure may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the disclosure will be achieved.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0052] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements present. Furthermore, when a layer is referred to as being "below" another layer, it may be directly below it or there may be one or more light-emitting units present. It is also understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more light-emitting units present.

[0053] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0054] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0055] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0056] Furthermore, in the instruction manual, the phrase "planar distribution diagram" refers to the diagram when the target part is viewed from above, and the phrase "cross-sectional diagram" refers to the diagram when the target part is viewed from the side as a cross-section taken by vertically cutting the target part.

[0057] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0058] As described in the background section, the display module in the related technology uses a carbon fiber layer as the support material on the back of the display module. Since the carbon fiber layer is non-conductive, an electrostatic discharge layer needs to be set on the back of the carbon fiber layer to release the static electricity of the display panel. The electrostatic discharge layer is usually copper foil. Since the bending ability of copper foil is poor, the copper foil is set in segments in the related technology. The copper foil is only set in the non-bending area, resulting in no copper foil in the bending area. The bending area is easily affected by external electric field interference, and bright / dark ripples are easily generated in the bending area, which affects the display effect of the display module and the user experience.

[0059] Based on the above reasons, this disclosure provides a display module and display device. By setting a conductive layer on the side of the carbon fiber layer away from the display panel, the conductive layer shields the electric field or discharges static electricity, thereby avoiding the electric field affecting the bending area that cannot be covered by the static discharge layer, and avoiding the problem of bright / dark ripples in the bending area.

[0060] In a first aspect, embodiments of this disclosure provide a display module 10, which may include a flexible display module with only display function, or a flexible display module with touch function. The flexible display module may, for example, be a flexible OLED (Organic Light-Emitting Diode) display module, a flexible liquid crystal display (LCD) module, or other types of flexible display modules.

[0061] Specifically, refer to Figures 1-8 As shown, the display module 10 includes a display panel 11, a carbon fiber layer 12, an electrostatic discharge layer 13, and a conductive layer 14. The display panel 11 can be made of flexible polyimide (PI), rigid glass, or a thin metal sheet, etc. This embodiment will not discuss display panels 11 made of other materials in detail; those skilled in the art can select different types of materials according to actual needs. The display panel 11 includes a light-emitting side and a backlight side; the light-emitting side is the front of the display panel 11, and the backlight side is the back of the display panel 11.

[0062] The display panel 11 has a bent area 113, a first non-bent area 111, and a second non-bent area 112 distributed along a first direction. The bent area 113 is located between the first non-bent area 111 and the second non-bent area 112. A carbon fiber layer 12 is disposed on the back side of the display panel 11. An electrostatic discharge layer 13 includes a plurality of electrostatic discharge portions 131 disposed along the first direction. The plurality of electrostatic discharge portions 131 are spaced apart and connected to a fixed potential signal. At least one electrostatic discharge portion 131 is located in the first non-bent area 111, and at least one electrostatic discharge portion 131 is located in the second non-bent area 112. A conductive layer 14 is at least partially located in the bent area 113 and electrically connected to the electrostatic discharge layer 13. The conductive layer 14 is disposed between the electrostatic discharge layer 13 and the carbon fiber layer 12, or the conductive layer 14 is disposed between two adjacent electrostatic discharge portions 131.

[0063] In this embodiment, refer to Figure 2 or Figure 5 The display module 10 is folded to bend the bending area 113. The first non-bending area 111 can be parallel to or attached to the second non-bending area 112. The display module 10 is unfolded to restore the bending area 113 to a straight state. The first non-bending area 111, the bending area 113, and the second non-bending area 112 are located on the same plane. When the display module 10 is folded to bend the bending area 113, the display module 10 is folded towards the light-emitting side. When the display module 10 is unfolded to restore the bending area 113 to a straight state, the display module 10 is unfolded towards the backlight side.

[0064] The carbon fiber layer 12 is located on the back of the display panel 11. The carbon fiber layer 12 has the characteristics of high strength and low density. The carbon fiber layer 12 supports the display panel 11 and can meet the support strength and bending performance of the display panel 11. At the same time, it can reduce the weight of the display module 10, so that the display module 10 is thinner and lighter, which is beneficial to improving the user experience.

[0065] An electrostatic discharge layer 13 is disposed on the side of the carbon fiber layer 12 away from the display panel 11. The electrostatic discharge layer 13 is connected to a fixed potential signal to discharge static electricity on the back of the display panel 11. The electrostatic discharge layer 13 is made of a metal material with good conductivity. In one example, the electrostatic discharge layer 13 is copper foil.

[0066] The electrostatic discharge layer 13 has poor bending performance. In this embodiment, the electrostatic discharge layer 13 is segmented, with the electrostatic discharge layer 13 broken at least at the bending area 113. The electrostatic discharge layer 13 is configured as a plurality of electrostatic discharge portions 131 spaced apart along a first direction. At least one electrostatic discharge portion 131 is provided in the first non-bending area 111 and the second non-bending area 112 for discharging static electricity. This prevents the electrostatic discharge layer 13 from bending along with the display panel 11, avoids the electrostatic discharge layer 13 from affecting the folding of the display module 10, and also prevents the electrostatic discharge layer 13 from breaking due to folding the display module 10, thus affecting the service life of the display module 10.

[0067] The conductive layer 14 is at least partially located in the bending region 113 and electrically connected to the electrostatic discharge layer 13. The conductive layer 14 is disposed between the electrostatic discharge layer 13 and the carbon fiber layer 12, or between two adjacent electrostatic discharge portions 131. In one example, the conductive layer 14 is disposed between the electrostatic discharge layer 13 and the carbon fiber layer 12. In another example, the conductive layer 14 is disposed between two adjacent electrostatic discharge portions 131.

[0068] The aforementioned display module 10 adds a conductive layer 14 to the side of the carbon fiber layer 12 away from the display panel 11. The conductive layer 14 shields the electric field or discharges static electricity, thereby preventing the bending area 113, which cannot be covered by the static discharge layer 13, from being affected by the electric field and avoiding the problem of bright / dark ripples in the bending area 113.

[0069] In one embodiment, at least a portion of at least one electrostatic discharge portion 131 is located in the bending region 113. The electrostatic discharge portion 131 of the first non-bending region 111 may extend into the bending region 113, or the electrostatic discharge portion 131 of the second non-bending region 112 may extend into the bending region 113. However, the electrostatic discharge portions 131 of the first non-bending region 111 and the second non-bending region 112 are not connected, and there are still areas in the bending region 113 not covered by the electrostatic discharge portion 131.

[0070] In one embodiment, reference Figure 1 , Figure 2 Between two adjacent electrostatic discharge sections 131, the conductive layer 14 and the carbon fiber layer 12 are detachably connected so that the conductive layer 14 can be removed before the display module 10 is assembled.

[0071] In this way, on the one hand, the conductive layer 14 and the electrostatic discharge layer 13 are connected to form an electric field shielding layer, and the conductive layer can shield the electric field of the bending area 113, so as to avoid the bending area 113 being affected by the external electric field; on the other hand, the conductive layer 14 and the carbon fiber layer 12 can be separated and connected, so the conductive layer 14 can be removed before the display module 10 is assembled, which can avoid the poor bending performance of the conductive layer 14 affecting the bending effect of the display module 10.

[0072] Specifically, the conductive layer 14 is a copper foil. In this way, the conductive layer 14 and the static discharge part 131 can be formed in the same manufacturing process, which can reduce the material consumption for forming the conductive layer 14, reduce the manufacturing difficulty of the display module 10, and thus reduce the manufacturing cost of the display module 10.

[0073] In one example, a single copper foil is etched to break it apart, forming multiple static discharge sections 131 and a conductive layer 14 disposed in the bending area. This eliminates the need for an additional step in forming the conductive layer 14, reducing costs and simplifying the design.

[0074] In this embodiment, the display module 10 has a copper foil as a conductive layer 14 in the bending area 113 between the electrostatic discharge parts 131. The conductive layer 14 shields the electric field (such as the electric field generated by applying or removing a film) on the back of the display module 10 before assembly, preventing the electric field from interfering with the display panel 11 through the bending area 113 between the electrostatic discharge parts 131. This avoids the bending area 113 between the electrostatic discharge parts 131 from being affected by the electric field and causing bright / dark ripples, thus improving the appearance and display effect of the display module 10 and enhancing the user experience. In this embodiment, the conductive layer 14 is removed before assembly so that the assembled module of the display module 10 does not have the conductive layer 14, minimizing the weight of the assembled module and not affecting the bending performance of the display module 10 during application.

[0075] In one embodiment, reference Figure 3 , Figure 4 A conductive layer 14 is disposed between two adjacent electrostatic discharge sections 131. The thickness of the conductive layer 14 is the same as or less than the thickness of the electrostatic discharge section 131. The material of the conductive layer 14 includes stainless steel alloy or titanium alloy. In this way, on the one hand, the conductive layer 14 and the electrostatic discharge layer are connected to form a complete electric field shielding layer, and the conductive layer 14 can dissipate static electricity, preventing the bending area 113 from being affected by the electric field. On the other hand, the bending performance of stainless steel alloy or titanium alloy is better than that of copper foil, and the conductive layer 14 has good bendability. The conductive layer 14 can be bent together with the bending area 113 of the display panel 11 without removing the conductive layer 14, making the manufacturing of the display module 10 simpler. At the same time, the good bendability of the conductive layer 14 avoids problems such as deformation or displacement caused by repeated bending and unfolding of the display panel 11, which can improve the service life of the display module 10 and enhance the user experience.

[0076] In one example, the conductive layer 14 and the static discharge portion 131 have the same thickness. In another example, the thickness of the conductive layer 14 is less than the thickness of the static discharge portion 131.

[0077] In one embodiment, reference Figure 3 The thickness of the conductive layer 14 is 20 μm to 30 μm. For example, the thickness of the conductive layer 14 can be 20 μm, 22 μm, 24 μm, 25 μm, 27 μm, 29 μm or 30 μm.

[0078] In this way, the conductive layer 14 is thin and has good bending performance, which can prevent the conductive layer 14 from shifting when the bending area 113 is bent. On the other hand, the thinness of the conductive layer 14 can reduce the materials required to form the conductive layer 14, reduce the manufacturing difficulty of the display module 10, and thus reduce the manufacturing cost of the display module 10.

[0079] In one embodiment, reference Figure 4 , Figure 5 The thickness of the conductive layer 14 is 30μm to 150μm. For example, the thickness of the conductive layer 14 can be 30μm, 40μm, 50μm, 60μm, 70μm, 80μm, 90μm, 100μm, 120μm, 140μm, or 150μm. The conductive layer 14 has a plurality of spaced-apart first holes 141. The first holes 141 can be through holes or blind holes. It can be understood that a through hole is a hole that penetrates the conductive layer 14, and the depth of the through hole is equal to the thickness of the conductive layer 14; a blind hole is a hole that does not penetrate the conductive layer 14, and the depth of the blind hole is less than the thickness of the conductive layer 14.

[0080] In this way, setting the first hole 141 in the conductive layer 14 can increase the bending performance of the conductive layer 14, avoid the conductive layer 14 from breaking due to repeated bending in the bending area 113, thereby increasing the thickness of the conductive layer 14 and improving the shielding effect of the conductive layer 14 on the electric field, thereby preventing the display panel 11 from being affected by the electric field and avoiding the problem of bright / dark ripples in the bending area 113.

[0081] Understandably, referring to Figure 4 , Figure 5 The first hole 141 can be a relatively regular hole, such as a rhombus, circle, ellipse, or rectangle; or it can be a triangle, square, parallelogram, regular pentagon, regular hexagon, near-circular, or near-elliptical shape; the first hole 141 can also be an irregular hole, for example, two adjacent first holes 141 may have different sizes and / or shapes. The specific structure of the first hole 141 is not limited in this embodiment.

[0082] Specifically, the shape of the first hole 141 is rhomboid, circular, elliptical, or rectangular.

[0083] In this way, on the one hand, the bending performance of the conductive layer 14 can be increased, avoiding frequent folding of the display module 10 and the deformation or displacement of the conductive layer 14 caused by repeated bending of the bending area 113; on the other hand, the first hole 141 is a regular hole, and it is easy to make the first hole 141 in the conductive layer 14, which can reduce the manufacturing cost of the display module 10.

[0084] Specifically, the diameter of the first hole 141 is 2mm to 10mm. For example, the diameter of the first hole 141 can be 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 6mm, 7mm, 7.5mm, 8mm, 9mm or 10mm.

[0085] Specifically, the spacing between the first holes 141 is 0.3mm to 1mm. For example, the spacing between the first holes 141 can be 0.3mm, 0.35mm, 0.4mm, 0.5mm, 0.6mm, 0.65mm, 0.7mm, 0.8mm, 0.9mm or 1mm.

[0086] In one example, the first hole 141 is rhomboid in shape, with a diameter of 2 mm and a spacing of 0.3 mm between holes 141. In another example, the first hole 141 is circular in shape, with a diameter of 4 mm and a spacing of 0.5 mm between holes 141. In yet another example, the first hole 141 is elliptical in shape, with a diameter of 6 mm and a spacing of 0.7 mm between holes 141; and in yet another example, the first hole 141 is rectangular in shape, with a diameter of 10 mm and a spacing of 1 mm between holes 141.

[0087] Specifically, the multiple first holes 141 of the conductive layer 14 are evenly arranged. It can be understood that "evenly arranged" means that the distance between any two adjacent first holes 141 is equal. This arrangement, on the one hand, makes the bending degree of the conductive layer 14 more uniform, avoiding frequent bending and local breakage or fracture of the conductive layer 14; on the other hand, it allows the conductive layer 14 to uniformly shield external electric fields, avoiding weak local shielding capabilities that could cause electric field interference to the display panel 11, and preventing wavy display defects in the bending area 113.

[0088] In one embodiment, reference Figure 6 , Figure 7 , Figure 8 The conductive layer 14 is disposed between the carbon fiber layer 12 and the electrostatic discharge layer 13, and the orthographic projection of the conductive layer 14 on the display panel 11 is at least partially located within the bending area 113. In this way, by adding the conductive layer 14, the bending area 113 is covered by the conductive layer 14 to avoid the bending area 113 being affected by the electrostatic field, thus avoiding the problem of bright / dark ripples in the bending area 113 of the display panel 11.

[0089] In some embodiments, the orthographic projection of the conductive layer 14 onto the display panel 11 covers the bending area 113. In this way, the bending area 113 is completely covered by the conductive layer 14, resulting in better anti-static interference capability of the bending area 113.

[0090] In some embodiments, the conductive layer 14 is made of stainless steel alloy or titanium alloy.

[0091] In one embodiment, the thickness of the conductive layer 14 is 20μm to 30μm. In this way, on the one hand, the conductive layer 14 has a better effect on shielding static electricity, which can effectively prevent the bending area 113 of the display panel 11 from being affected by static electricity. On the other hand, the conductive layer 14 is thinner, which ensures that the display module 10 is thin and lightweight.

[0092] In one embodiment, reference Figure 7 At least one edge of the orthographic projection of the conductive layer 14 onto the display panel 11 extends beyond the edge of the orthographic projection of the carbon fiber layer 12 onto the display panel 11 by a predetermined length. In this way, the edge of the conductive layer 14 extends beyond the carbon fiber layer 12, so that static electricity can be discharged through the edge of the conductive layer 14, avoiding static interference with the display panel 11 and preventing the appearance of bright / dark ripples in the bending area 113 of the display panel 11.

[0093] For example, the preset length is 0.05mm-0.15mm. For instance, the preset length can be 0.05mm, 0.07mm, 0.08mm, 0.1mm, 0.11mm, 0.12mm, 0.13mm or 0.15mm.

[0094] Specifically, the preset length is 0.1mm.

[0095] It is understandable that one side edge of the conductive layer 14 extends out of the carbon fiber layer 12 by a predetermined length. Alternatively, multiple sides of the conductive layer 14 may extend out of the carbon fiber layer 12 by a predetermined length, such as two sides of the conductive layer 14, three sides, or all four sides.

[0096] In some other embodiments, reference is made to Figure 6 The orthographic projection of the conductive layer 14 onto the display panel 11 coincides with the orthographic projection of the carbon fiber layer 12 onto the display panel 11. This results in a smooth edge for the display panel 11, facilitating its application and assembly.

[0097] In some other embodiments, reference is made to Figure 8The orthographic projection of the conductive layer 14 on the display panel 11 can also fall on the orthographic projection of the carbon fiber layer 12 on the display panel 11, and the edge of the conductive layer 14 is concave relative to the display panel 11.

[0098] In one embodiment, reference Figure 7 , Figure 8 The display module 10 also includes a conductive silver paste layer 21, which is applied to the edge of the conductive layer 14. In this way, the conductive silver paste layer 21 has good conductivity, allowing it to connect with the film layers on the back of the display panel 11 and conduct static electricity away from the back of the display panel 11. This improves the anti-static effect of the display module 10, prevents the display panel 11 from being affected by static electricity, and avoids the problem of bright / dark ripples appearing in the bending area 113.

[0099] In one example, refer to Figure 7 The edge of the conductive layer 14 extends beyond the carbon fiber layer 12 by a predetermined length, and the conductive silver paste layer 21 is coated on the outer edge of the conductive layer 14. In this way, the conductive silver paste layer 21 can connect to the film layer on the back of the display panel 11, and can conduct static electricity on the back of the display panel 11 through the conductive layer 14, thereby improving the efficiency of static electricity discharge.

[0100] In another example, refer to Figure 8 The edge of the conductive layer 14 is recessed relative to the display panel 11, and the conductive silver paste layer 21 is applied to the recessed edge of the conductive layer 14. In this way, on the one hand, static electricity on the back of the display panel 11 can be discharged through the conductive silver paste layer 21 to improve the antistatic effect of the display module 10; on the other hand, the edge of the display panel 11 is flat after the conductive silver paste layer 21 is applied, which facilitates the application and assembly of the display panel 11.

[0101] Understandably, conductive adhesive can also be applied to the edge of conductive layer 14 instead of conductive silver paste layer 21, allowing static electricity to be discharged through the back of the conductive adhesive. This would further reduce the manufacturing cost of display module 10.

[0102] It is understandable that the conductive layer 14 may have a second hole (not shown in the figure) at the bending area 113. The second hole enhances the bending performance of the conductive layer 14 at the bending area 113, preventing the conductive layer 14 from breaking due to repeated bending of the bending area 113, thereby improving the service life of the display module 10 and the user experience.

[0103] The structure and layout rules of the second hole are the same as those of the first hole 141, and will not be repeated here.

[0104] In one embodiment, reference Figure 1 , Figure 3 , Figure 4 , Figures 6-8 The display module 10 also includes a polarizer 17, an optical adhesive layer 18, a cover plate 19 and a first protective layer 20, which are sequentially disposed on the front side of the display panel 11. The first protective layer 20 is attached to the side of the cover plate 19 away from the display panel 11.

[0105] The display module 10 also includes a support layer 15, which is disposed between the back of the display panel 11 and the carbon fiber layer 12. The support layer 15 can be a resin layer. This provides the support layer 15 with good support strength and bending performance, meeting the requirements of the display module 10. For example, the material of the support layer 15 can include at least one of polyethylene terephthalate (PET), polycarbonate (PC), polyimide (PI), and polyarylate (PAR).

[0106] The display module 10 also includes a second protective layer 16, which is attached to the side of the electrostatic discharge layer away from the display panel 11.

[0107] The first protective layer 20 and the second protective layer 16 are used to protect the display module 10. Before the display module 10 is assembled, the first protective layer 20 and the second protective layer 16 are separated and removed.

[0108] Based on the same inventive concept, this disclosure also provides a display device (not shown), which includes the display module 10 in the above embodiments.

[0109] It is understood that the display device in the embodiments of this disclosure can be any product or component with display function, such as OLED display device, QLED display device, electronic paper, mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, navigator, wearable device, Internet of Things device, etc., and the embodiments of this disclosure do not limit it.

[0110] The aforementioned display device, by adding a conductive layer 14 on the side of the carbon fiber layer 12 away from the display panel 11, shields the electric field or discharges static electricity through the conductive layer 14, thereby preventing the bending area 113, which cannot be covered by the static discharge layer 13, from being affected by the electric field and avoiding the problem of bright / dark ripples in the bending area 113.

[0111] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0112] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A display module, characterized in that, The display module includes: The display panel has a bent area, a first non-bent area and a second non-bent area distributed along a first direction, wherein the bent area is located between the first non-bent area and the second non-bent area; A carbon fiber layer is disposed on the back of the display panel; The electrostatic discharge layer includes a plurality of electrostatic discharge portions disposed along the first direction. The plurality of electrostatic discharge portions are spaced apart and connected to a fixed potential signal. At least one of the electrostatic discharge portions is located in the first non-bending region, and at least one of the electrostatic discharge portions is located in the second non-bending region. A conductive layer is at least partially located in the bending area and electrically connected to the electrostatic discharge layer. The conductive layer is disposed between the electrostatic discharge layer and the carbon fiber layer. The orthographic projection of the conductive layer on the display panel is at least partially located within the bending area. At least one edge of the orthographic projection of the conductive layer on the display panel extends beyond the edge of the orthographic projection of the carbon fiber layer on the display panel by a predetermined length.

2. The display module according to claim 1, characterized in that, At least a portion of the static discharge section is located in the bending area.

3. The display module according to claim 1 or 2, characterized in that, The conductive layer is made of stainless steel alloy or titanium alloy.

4. The display module according to claim 1 or 2, characterized in that, The thickness of the conductive layer is 20μm~30μm.

5. The display module according to claim 1 or 2, characterized in that, The conductive layer forms an orthographic projection on the display panel that covers the bending area.

6. The display module according to claim 1, characterized in that, The preset length is 0.05mm-0.15mm.

7. The display module according to claim 1, characterized in that, The display module also includes: A conductive silver paste layer is disposed at the edge of the conductive layer.

8. A display device, characterized in that, Includes the display module as described in any one of claims 1-7.

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